svendsen



0. M. SVENDSEN MACHINE FOR PREPARING AND ASSBMBLING May 27-, 1924 HINGED BOX PARTS Filed Nov. 19 1920 9 Sheets-$heet 5 V 1 w .7 a V w W M v 5 J/ A M 0 4 w a u. a Z w 6 at & a A, k U0 May 27 1924 o M. SVENDSEN MACHINE FOR PREPARING AND ASSEMBLING HINGED BOX PARTS Filed Nov. 19. 1920 9 Sheets-Sheet May 27, 1924.

O. M. SVENDSEN MACHINE FOR PREPARING AND AS SFMBLING HINGED BOX PARTS t mm w a W 9 3% m yaw Flled Nov. 19

May 27 1924.

O. M. SVENDSEN MACHINE FOR PREPARING AND ASSEMBLING HINGED BOX PARTS Filed Nov. 19 1920 9 Sheets-Sheet 8 May 27. 1924.

O. M. SVENDSEN MACHINE FOR PREPARING AND ASSEMBLING HINGED BOX PARTS il d N 1.9. 1920 9 Sheets-Sheet 9 llvllilivtlllllii lllllllllllll'llil WWW 3& Gummy Ala ratenleu may 27, 1924. UNITED STATES PATENT OFFICE.

OLE M. SVENDSEN, OF BALTIMORE, MARYLAND, ASSIGNOR TO FEDERALTIN COH- PANY, INC., OF BALTIMORE, MARYLAND, A CORPORATION OF NEW YORK.

MACHINE FOR PREPARING AND ASSEMBLING HINGED-BOX PARTS.

Application filed November 19, 1920. Serial No. 425,090.

To all whom it may concern. tions, forming hinge ears in certain parts, Be it known thatI, OLE M, SvENosEN, a such as box bodies, insertin pintles in the citizen of the United States, and resident of hinge ears. forming comp emental hinge Baltimore. State of Maryland, have invented members on coinplemental box parts, such 6 certain new and useful Improvements in Maas covers, bringing the complemental box 60 chines for Preparing and Assembling parts together, and connecting the hinge Hinged-Box Parts, of which the following members to form complete boxes. is a specification. In a preferred embodiment, also, the feed My invention relates to machines for mechanism is improved and simplified and is 10 forming hinge members on complemental related to mechanisms which operate upon box-part blanks, and for assembling the box the box parts so that special registering or parts to produce a complete, hinged boxstopping mechanism to locate the parts structure. in different work positions in eliminated. More particularly the invention relates to Preferably also the box parts are advanced a machine adapted to attach separate hinge through stationary channels and at certain pintles to box-parts, such as box bodies, to points where it 1s necessary to place the concurrently form complemental hinge memparts on special holding devices, such as bers in complemental box parts, such as inandrels, for the performance of certain opcovers, to bring the box parts together and (nations, means are provided for placing the I 0 assemble the hinge parts, and to complete box parts on the mandrels b 1 moving the the assembly by bending the cover hinge parts laterally from their normal course of, members about the pintles. movement, and more articularly this is The word form or forming as used done in the present embodiment by lifting herein, and especially in the claims, in the pins. This eliminates relatively couiplibroader sense, includes the provision or cated mechanism employed in other ma,- shaping on the respective box parts of the chines for similar purposes. respective hinge members, for instance, the Simplified means are also preferablyprdpunching of the hinge eyes in the box bodies vided, operated by movement of binge part and the bending or shaping of the hinge forming dies, for releasin the box parts liooks on the covers. from the fixed dies or man rels, this mecha- 55 The general object of the invention is to nism replacin more complicated devices provide a machine of simple, durable and usually provi ed in other machines for a economical construction, capable of ersimilarpur ose.

forming the described operations rapidly Prefei'ab v also the wire used for hinge 35 nd economically nd, pref ably, entirely pintles forming a part of the bin e member automatically. at one of the box parts is fed y simple Another object is to provide means for ratchet devices, which insures the delivery of forming ventilating openings in box parts, the proper length of Wire to form a pintlqmt and especially to advantageously co-ordinate each operation without regard toother varv- 40 such means, when included in the complete ing' conditions. This eliminates relatively machine, with instrumentalities for percomplicated mechanism employed in other forming other operations. machines for a similar purpose, for instance, A further object is to provide means, mechanism in which wire is fed from fricn'liich may be included when desired, for tion rolls and the length of wire fed for 45 removing the burrs formed on the box parts each pintle is overned partly by the diamin the formation of the ventilating open eter of the rolls and the number of revoluings. ti'ons thereof.

Another object is to provide various im- Preferably also simplified and improved provements in machines of this class, snflimeans are provided for substantially simulciently specified hereinafter. taneously cutting and registering the wire To attain these and other objects. the inpintle in relation to the box part in which it vention as embodied in a referred form deis to be inserted, th s mechanism replacing sirably comprises com ined instrumenmore complicated devices used in other m'atalities for advancing blanks (or partly chines forasimilar purpose, for instance de- 55 formed, box parts) to different work posivices which require separate means for cutarrangement of t a I Fig. 13

ting ofi the pintles and for registering them in relation to the box parts.

The invention also comprises instrumentalities for attaining other objects, mentioned above and hereinafter.

Certain of the instrumentalities'or subcombinations of the complete organization embody improvements, and have utilit in themselves; apart from other parts the organization; also variations may be' made in structure and arrangement of the general organization, arts an sub-combinations of parts, within e principles of the invention, too numerous'to oint out at len h, and,

therefore, only a ew of the possib e 'variations will be mentioned.

The accompanying drawings show a machine embodyin the invention in one form. Fig. 1 is asi e elevation;

Fig. 2' is a top-plan;

Figs. 3 to 8, inclusive, are erspective views oj/box parts in their original conditionsand after diflerent successive operations have been erformcd upon them, the lie fi ures also showin the relative progress of ifierent parts 0 one complete box through the machine;

F1 9, 10 and '11, are sectional .views showin the hinge members oftwo complemental parts brought together, with the box. parts in different relative positions in the rogress of assembly, and nally with the hinge members completely formed, and the box parts permanently connected togather;

Fig. 12 is a vertical section at 12-12, Fig. 2, sho ing mechanism for punching ventilati gg penings is a vertical section at 13-43,

0 Fl showin hinge part forming dies and rating mec anism;

Figs. 14 and 15 are enl, r ed sections of hinge part forming dies an certain adja- .cent parts;

Fig. 16 is a vertical section at 1616, Fig. 2, showing principally mechanism for insertin and cutting o hinge pintles;

Fig. 1 is anenlarged vertical section in a lon itudinal plane of the machine, showing principally pintle. inserting mechanism;

' is an enlarged top plan of the intle inserting mechanism, with some parts roken away;

Fi 19 isa detail on similar scale, showing t e pintle inserting mechanism i r'a different position; a

is a vertical sect' at 20-20,

Fi showing mechani. for smoothing fin burrs about the .v tilatin o hinge; 6 also parts of the longitudinal ee mec anism and parts of the pintle inserting mechanism;

Fig. 21 is a vertical section at 21-21,

Fig. 2, showin transverse feed mechanism for successive ieeding of similar box parts tiate them from the sides 11.

(specifically box tops or covers in this embodiment) also mechanism for commencing the operation of engagin complemental hirige members with each ot er;

1g. 22 is a similar section including only the left hand part of Fig. 21, showing the hinge connecting mechanism in a different position;

Fig. 23 is an enlarged section of portions of the box parts showirig one of the cover positions in the operation of hinge connection;

Fig. 24 is a*vertical section at 24.-24, Fig. 2, showing additional parts of hinge enga ing mechanism;

ig. 25 isfa similar view showing the parts in a 'difi'erent position;

Fig. 26 is an enlarged detail of Fig. 25 showing particularly a box part supporting plunger;

Fig. 26 is a sectional detail of the supporting or elevating plunger. v

Fig. 27 and 28 are vertical sections at 27-2 Fig. 2, showing hin e clinching or hinge assembly finishing mec anism in two different positions; and

Fi 29 is an enlarged section of the hinge clinc ing dies pf Figs. 27 and 28.

Bow-part and hinge stmctures.

Figs. 3 to 11, inclusive, show box parts of typical forms as supplied to the machine, and in approximately the relative positions they occupy in their progress through the machine, in the embodiment here shown, with the hinge arts in difierent. successive stages of forum ion, and then in diiferent stages of the connecting operation, and finally the completely assembled box with .the hinge parts permanently connected together. These figures also show ventilatmg op'enmgs formed in certain of the box parts y the operation of thmmachine and a match scratching surfac which may also be formed as an incide operation.

Fig. 3 shows a, body or botto rectangular fo'm, of.sheet metaL having a bottom 10, two opposite shallow sides 11 and two other opposite shallow sides 12. which may be cal ed ends for descriptive purposes, when it is necessary to differen- The sides, ends and bottom thus constitute a shallow rectangular box section which is easily produced y stain in and pressing operations. To facilitate t e ormation of hinge members of a certain sort, one of the sides 11 may be provided with shallow edge extensions 13. Fig. 5 shows a box section C, which is of generally similar form to section B, having a bottom 14, shallow sides 15 and ends 16, so called for descriptive convenience. This box section is intended in this case, to be the top' or cover of the completed x part B, specifically a section of a box, usually of box. Evidently the terms top and bottom or body, as applied to the box sections are of only relative significance; also the term bottom as applied to the main portion of box part B or the main portion 14 of box part C, is used for descriptive convenience, since the part 14 of box part C is really the top of the completed box, as ordinarily labeled and arranged for sale. One of the side portions of co. er part C is preferably formed with a rudimentary or embryo hinge portion, such as the tongue 17, which has a straight edge projecting somewhat above the normal outline of the edges of the sides and ends 1516. At each side of this projection or tongue is usually provided a depression or notch 18 in the side 15. These notches accommodate the particular kind of hinge ears formed on the other box part.

For structural and operative convenience two compleniental box parts are desirably advanced through the machine contemporaneously 01' in substantially opposite relation. Omitting reference to Fig. 4 temporarily, the two box parts are desirably advanced to parallel work positions, exemplified by the positions of the box parts in Figs. 6 and 7. At this work position box part B is acted on by suitable devices, such as cutting and pressing dies. to produce pintle cars 20 of part-cylimlrical outline with confronting openings 21 to rcceive a wire piutle. In this operation. extensions 13 of Fig. 4; are drawn down and substantially disappear. Box part C is acted upon by bending dies to bend over the upper part of the rudimentary hinge member 17 forming a part 22 which may be identified as a hook member of the hinge part. A curved or part-cylindricul bond 23 is also pretcrably formed at the same time in hinge member 17 intcrmcdiatethe hook portion 22 and the remaining straight portion 24 ot' the side 15. this bend being adapted to accommodatc the hinge pintle of the other box. part.

A match scratching surface, consisting, of a row of corrugations 25 may be formed on side wall 11 of box part B, conveniently by the same dies that form the hinge cars 20.

hinge pintlo 95 is inserted in cars 2|) oi box part l) and usually this is done by suitable instrulnmualitics at another work position oi the box part rcprcscnlcd in Fig. H. During lhc movement of box part l3 to this work position. part C may be moved a suitable distance without any work being performed upon it. to keep step with box part B: and the box parts are then brought together. usually at another work position than the one in which the pintle is inserted in part B. This associating movement of the box pa r1 s may conveniently consist in moving part U laterally while part B does not depart from its normal line of progress, al-.

though evidently, the relative movements of the parts may be reversed. The two parts, therefore, are brought into close proximity, as shown in Fig. 8, usually at a work position beyond the one at which the pintlc was inserted. Box part C is then tilted as in Fig. 9 and hook 522 is inserted between pint lo 28 and side 11 of the box body and the cover then caused or permitted to fall back to about the-position shown in Fig. 10, thus completing the insertion of the hook and locating hinge bend 23 properly about the pintle. By, suitable forming dies the hook portion 22 is then bent completely around the pintle 'lormil'ig a substantially closed hinge eye 29 and completing the hinge assembly of the boxparts as shown in Fig. 11. The completed box may then be delivered from the machine in open condition as shown in Fig. 11. The exact method of manipulating the box parts may be varied greatly.

It is desirable to provide ventilating openings when the boxes are to be used for certain commodities. such as tobacco. My invention provides for conveniently forming these openings when desired. Fig. 4 shows ventilating holes 30 of suitable number and arrangement cut in bottom 10 of box part 13. This may be done by a suitable punch mechanism and this mechanism may conveniently be located at a work position in advance of the position in which the formation of the hinge parts is commenced, such as the work position represented by Fig. 4. The punches which produce the holes usually leave burrs about the holes and means are, therefore, usually provided for stamping down these burrs and this operation is most conveniently performed at another work position. usually somewhere between the position at which the formation of hinge parts on box part B is completed and the position at which the assembly of the box parts is commenced, and also conveniently the burr stamping mechanism may be associated with partswhich perform-other essential operations, such for example as part of the pin'tle inserting mechanism. Evidently-the ventilating holes may be formed in the other box part. or in both parts it necessary.

A machine chosen "as the embodiment of the invention. comprising instrumentalities for forming and assembling box partsin the general manner above explained, will now be dcscribed.

General organization, and conveyors.

A top plate or table (Figs l'a'nd 2) is supported on suitable legs 36. .The legs support longitudinal frame members 38, 39 (see Fig. 16') and bearings 41 in which drive sha ft 42 is revolubly mounted, Table 35 is broken away at the left, which'is the initial or feed end of the machine, indicating that the machine may be provided with suitable means for automatically feeding box parts to it or that themachine may in fact be a continuation of another maphine or machines for initially formin the box arts as indicated in Figs. 3 an 5; although, of course, the machine may be entirely inde endent, and box parts may be su plied to it by hand or otherwise. The mac me. in the present embodiment, is arranged so that box parts of one kind, such as bodies B, progress in an evenly spaced line near one side of the table and the other parts C progress in an evenly spaced line near the other side of the table to a point between section lines 21 and 24, Fig. 2, where parts C are fed laterally into association with parts 13, and thert after the pairs of box parts are advanced together to the delivery end of the machine, at the right, the assembly of the parts being completed between these points. From the feed end to the lateral feed position a box part. in each row is kept opposite a complemental part in the other row. For the sake of simplicity and accuracy in feeding the box parts and locating them with respect to devices that act on them at the different work positions, it is preferred to advance the parts step by step with a rest of suitable duration at each work position, and usually also incidentally at some intermediate positions where no operittions areperformed on the parts, due to exigencies of organization of the co a ro ,of bodies B a feed bar 45 is arranged to/f iprocate in a channel provided in the table. This bar is provided at equal interval (see Fig. 17) with feed pawls 47 located in spaces 48 formed in the bar. Each pawl has a part-c lindrical end 50 located in a socket o simi or form providing a piveta] mounting for the pawl, and a spring 51 located in a suitable socket in the bar urges the awl upward so that its free end normally iies considerabl above the upper surface of the bar (whic is flush with the table) and is in a position to engage the rear ends 12 ofthe box bodies. The upward movement of the pawls is limited by engagement with the u er walls 52 of the pawl spaces in the fee ar.

A similar feedbar 55 for box parts C, provided with similar paw 56, is reciprocably mounted in a channel in the table, par allel to the first bar, and the pawls on the two feed bars are opposite so that they engage and feed the 0): parts in parallel paired relation, as clearly understood from ig. 2. The box parts in each row are guided against lateral movement and at certain points against improper vertical movement, by suitable means suificientl exemplified by ride strips 59 for parts (Figs.

1, 2 and 20%. These guide strips have chan ete machine. Therefore, to feed nels 60 accommodatin the sides of the box parts and the upper fanges of the channels may be emitted at certain points,'and the guide strips may also be omitted at certain places to properly accommodate the guide means to the form of the box parts and parts of the mechanism.

Feed bar. 55 for cover parts C extends f pm the feed end of the machine to a. point Iie'ar section line 21Fig. 2, and at that point a lateral feed bar 63 for cover parts C is arranged to reciprocate in a transverse channel in table 35. This feed bar is substantiallv similar to the others and is rovided with similar pawls 64 (see also ig. 21) and these pawls are spaced equally apart a suitable distance with due regard to the width of the box parts and. the necessary distance of travel at each feed movement. Any or all of the feed bars may be provided as shown in connection with the feed bar 63 with lateral base flanges 66, co-operating with strips or gibs 67, screwed to the table to properly locate and guide the feed bar and ermit its easy implacement and removal These details are omittedfrom the showing of feed bars 45 and 55 for the sake of clearness.

Feed bars 45 and 55 are moved simultaneously to and fro by the ollowing means: Drive shaft 42 carries a cam having a pcripheral channel 71. A rock arm 72 is mounted on a transverse shaft 73, mounted in suitable bearings on frame bars 38 and 39. This rock arm-has a cam follower 75 located in cam groove 71. Transverse shaft 73 also carries another rock arm 77, parallel to arm 72 and both the arms are fixed to more with the shaft-The upper ends of eachot arms 72 and 77 are connects the one to'feed bar 55 and the other to feed bar 45,;by similar linkages, only one of which wilhb gseribed. This comprises two link lllGHil'Jsi'STQ and 80 pivotally connected on a studf82 located on a block 83 secured to the lower side of the feed bar, in this instance, bar 55. The two link members are urged together by a rod 85 connected to link member 80 and a spring 86 carried by the rod and ompressed between adjustable nuts 88 on the rod and the lower face of link member 79. The confronting faces of the link members are provided with sockets 90 of part-cylindrical form embracing a pin 91 carried by the upper end of rock arm 72.

Similar reference characters identify the similar linkage provided for rock arm 77 and feed bar 45. As main shaft 42 rotates continuous] cam groove 71 osdllates rock arm 72 an through shaft 73 rock arm 77 oscillates synchronously and thc two link connections reciprocate the two feed bars. At each return movement of the feed bars their initial pawls 47 and 55, engage the rear ends of a box part. B and (7. respectively, and in the right hand (feed) movement of the rock the box parts are advanced one step; at the next return move ment of the rock arms and feed bars, if the box parts are at that time held down by their guides, each pawl which was next in advance of the respective box parts, is depressed by Contact with the forward end of that part and slides under the box part until at the end of the return movement each last mentioned pawl snaps up into engagement with the rear end of the box part and is ready to feed it forward another step at the next feed movement of the bar. The com contour is such that the box parts are permitted to remain stationary at each work position long once 11 for the proper operations to be performe upon it at that point. this rest of the box parts being, of course. the same at each station. Since the feed movement of both rows of box parts is controlled by a single cam. it is only necessary to use ordinary care in properly spacing the driving pawls and equalizing the link connections to insure canal movement of the parts in each row, an(, of course. the movement of the box parts from each position to the next is perfectly uniform. No special devices are needed to arrest movement of the box parts as they reach each work position, and the feed and registry mechanism is thus greatly simplified; in fact registry mechanism for the box parts is practically eliminated.

The two-part link construci ion described provides a yielding conncction bctwcen the feed driving mechanism and the feed burs. so that if for cxamplc. the movement of either fccd bar is obscured by a box part jamming in its guides or in any of the dcviccs which act upon it. pin 01 of thc ('orrw sponding rock arm will pull out from belwcen the sockets 00 of links and 80 and thc link will drop down t'rcc from thc rock arm. and further fccd movements of the rock arm arc idlc until the obstruction can be removed and the link connection restored by springing apart link members 70 and R0 and reinscrting pin 00 between the sockets.

Transverse feed bar 6.) is driven in a similar way by somewhat differently or ranged mechanism including :1 two-part link similar to the ones just described and identificd by similar rcfercpcc churiu'lcrs (see Figs, 1, 2 and 21). A slide 05 is arranged justed in relation to the slide and thus in relalion to the operating means, so that .the feed pawls of the bar may be brought into proper position with relation to box arts C delivered at the rear cnd of longitudinal conveyor 55. The inner end of two-part link 7 980 is pivotally connected at to the inner end of slide 95 and the sockets 90 of the links engage a pin 101 on the upper end of a rock arm 102 fulcrumed at 103 on a bracket 10% secured to one of the longitudinal frame members. The sockets 90 are carried by b cks 90 secured to the sides of the link me hers 79 and 80. Drive shaft 42 has an ec entric 105 operating on eccentric strap 10 and link 108, the end of which is pivoted at 109 to rock arm 102. The eccentric is arranged so. that. the feed stroke of the rock arms commences at the end of thc dwell of the box parts. that is at substantially the same instant as the commencement of feed movement of the other feed bars. and the feed stroke of bar, 63 stops at about the time that the feed movement of the other bars is completed or sufficiently soon thereafter to bring the box cover part at the delivery end of bar 63 into association with the box body delivered to that Work position at about the same time. and sufficiently soon to permit the necessary opcrations to be performed upon the box at that point before the next feed movement. It is now apparent that feed bars 45 and 55 are spaced apart a distance corresponding to the spaces required for a definite number of box part locations on the transverse convcyor 63. that is in the present instance, two box part locations. between the longitudinal conveyors so tlat at each feed stroke of the lateral con vcyor it takes a box cover part delivcrcd by longitudinal feed bar 55 and moves it one stcp toward feed bar 45 and at the next feed movement delivers this box p rt to desired proximity to the box body part delivered to that work position by feed bar 45.

Ventilator punching apparatus.

It is convenient in some cases, as exemplified in the present embodimenb to punch the ventilating openings 30 (Fig. 4) at the first work position of box bodies B. that is. the position substantially between section lines 12 'and 13. Fig. 2. lVlien the punching is provided for at this point, the complemental box parts C opposite this work position are idle; that is. no operations are performed upon them, although an opportunity is afforded for performing suitable operations upon these parts when in this position.- To give one example, these parts might perforated to provide additional vent sting openings by a substantial duphcatron of the punching mechanism now to be described.

A frame member is secured on the table and conveniently this is,in the form of a yoke bridgin the path of movement of box parts 13 (see igszl, 2 and 12). A punch lunger 116 reciprocates in a suitable socket in the top of the yoke and carries a slide 118 flanged at the sides to engage ways provided on the sides of the yoke; The slide carries a punch head 120 provided with punches 1210f suitable number and arrangement to roduce the hole-pattere desired, as exempli ed in Fig. 4, and the punch head also carries a plate 123 perforated to accommodate the punches and urged down by s rin 124 surrounding plun ers 126 mova lo 111 suitable holes 127, provided in the punch head. Table to receive a punch holes to receive the die 128 having suitable unches and the table is provided with suita le rtfires below the. die to discharge the punc in Further details may be as usual in [mm ing ap aratus and need not be explained. Drive s aft 42 carries a cam 130 having on one face a cam groove 131. Adjacent to'the cam is acam driven member 133 which has its lower end slotted, providing two members 135 and 136 embracing shaft 42 to permit vertical mbvement and resist lateral dis lacement. Member 133, which may be i entified for convenience as a cam yoke, has a cam follower 138 lying in the cam groove. The cam yoke is carried by a plunger 140 reciprocating in a suitable sleeve 141 provided for it in table 35. Punch plunger 116 is provided with a clevis 142 and in this is fulcrumed a lever 143. One end of the lever has a pivot connection to a link'145 and this link is in turn pivoted to a bracket 146 which may be a part of frame yoke 115. The other end of lever 143 is ivoted to a link 147, and the other end 0 this link is pivoted to the upper end of plunger 140.

a When the feed movement of bar. 45 takes place, the arts are in the position shown in Fig. 12. K box part Bis fed into position below the punch late 123 and comes to rest in registry with t e plate. Rotation of cam 130 pulls down cam yoke 103 and through the linkage described, the punches are forced through the bottom en of the box part, punch plate 123 meanwhile holdin down the box part with s ring pressure, and as the punches are raise again the punch plate holds down the box part and frees it from the-punchcs and fins ly the plate returns to the position shown in Fig. 12, leavin a clear path for'the box part which is bl0c 35 is suitably recessed pear.

fed forward one setp at the next feed mov'ement of bar 45.

The punchin mechanism may be omitted when it is not esired to provide ventilating openings, and in that case the box bodies are fed directly to the hinge: forming apparatus.

Hinge member forming apparatus. The next work position is substantially between section lines 13 and 16, Fig." 2 and in this gpsition is located mechanism for forming', inge members on both box parts simultaneously. The word formin -as applied to hinge members is use in its broadest sense to include the forming on or applying to a box part a complete hin memberandfri a more limited sense tfi: word is used to indicate treating or formin a part of the box section itself, as by ben ing or punching and bending, a part of a com leted hinge member. In the present embo iment of the invention, in this work position, the hinge ears 20, Fig. 6, are formed on the box bodies while the rudimentary hinge members 17 ofthe box covers are bent into partly finished hin members 22-23, as previously'described in connection with Figs. 7, 9 and 10. The

hinge member of box bodies B is completed by inserting a pintle in the ears in the next work position and this is a practical and convenient arrangement in the present embodilnent of the invention; but evidently by suitable adaptation of parts a com lete hi ge member can be formed on one 0? the box parts at this stage of operations while to constitute a partly finished complement a1 hinge memher .is formec'Lon the other. It is also evident that devices for forming a hinge member on one of the box parts may be omitted and in that case the hinge members on those parts would be rovided independently of the present mac inc and such box parts would simply be fed into association with the box parts on which hinge members are formed by this machine, at a suitable point, as will be understood from later description. It is also evident that hinge members on box parts O need not be formed at thls work position, since the next position of not these box parts is an idle one and the formation of binge members on them could be aceomplished at the next or any one of several next succeeding positions. t is more convenient,-however, to provide mechanism for simultaneously forming hinge members one pair of complemental box parts, as will up- In this osition, (see Figs. 1, 2, 13, 14, 15) a cross at 150 conveniently of rectangular cross section is arranged at moderate distance above the table and convenisntl suppmrted on blocks 151,the crossbar m being secured by through-bolts 158 ind M5 154. Above the path of box parts mandrel 157 is mounted on cross bar This mandrel is a block of generally rectangular form and it may be channelled on its it )per face to aeeonuuodate .the cross bar, an secured in a'djnstahly fixed position on the bar by a cap 159 and screws 161. Additional means may also be provided for adjusting the die mandrel. and holding it against die pressure, such as screws 162. passing through threaded holes in block 151. and engaging the outer face of the mandrel. These screws may be rotated to adjust: the lateral position of the mandrel, and the adjustment then made secure by lock nuts 162}. At its lower end and inner face. that is the face confronting the longitudinal center line of the machine. the mandrel is provided with an inserted die 163. Also located on cross bar 150. but in this case slidably mounted. is a die block 167. This is of somewhat similar form to mandrel 157, that is it is channelled to slidably engage the cross bar and is slidably secured by a cap 169 and screws 170. At its lower end confronting mandrel 157 the die block has an inserted die 172. Dies 163 and 172 are provided with complemental male and female pressing and cutting menr hers 174 and 175. as best shown in Fig. 14. These are properly designed so that when the dies are pressed together they draw and cut the metal of the inner side wall 11 of box part B and form ears 90 as previously described in connection with Fig. 6. Near its other end. substantially over the path of movement of box parts C another mandrel 177 is'monnted in adjustably fixed position. and provided with adjusting and holding screws 162. and with this mandrel (o-operates a die block 179 generally similar to die block 167 and slidably mounted on the cross bar. M andrel 177 is provided with an inserted die 131 and die block 179 is provided with an inserted die 182 (see Fig. 15) and these dies are proyided with (o-operating male and female bending members 184. 185. respectively. designed to produce. when the dies are pressed together upon the inner side wall 15 of box section C. theformation of rudimentary hinge tongue 17fldescribed in connection with Fig. 7

There is sufficient clearance under mandrels 1fi7and 177 to permit the respective box parts to pass beneath them to a position in which the box parts are approximately centered in respect to the bottoms of the mandrels. Before the.boX parts come into position die blocks 167 and 179 are withdrawn. The mandrels are at located that when the box parts are moved upward. their inner side walls 11 and 15 respectively clear the inwardly projecting members 174 and 184 of dies 163 and 181. The opposite side wall of each box section then lies near the outer face of the lower end of the mandrel snugly. but with reasonable clearance. Just after the box sections come intd position they are lifted into engagement with the mandrels: the movable die blocks are then moved forcibly outward and the dies form the hinge members as described: the die blocks then reeede. The box parts are then pulled from the male die members by lateral movement toward the center 01' the machine and stripped from the nnuulrels by positively acting devices so that they again rest upon table 35 in their normal path of move ment and at the next teed movement these parts are passed i'orward and other similar parts inserted tllnl so on. Devices for performing these operations are as follows:

The die blocks 137 and 169 are moved by toggle links 190. pivot ally connected to the blocks and to a plunger 15,11 vertically movable in a sleeve 193 bolted to the table. The lower end of this plunger is connected to a cam yoke 19:). the lower end of which is slotted to straddle shaft 42. as in the case of ram yoke 133. The yoke has a cam follower 197 engaging a cam groove 199 in 021111200.

Below the table is mounted a plate 202 which may be identified as alitter plate. This is provided with a plurality of pins 201i for lifting box parts B. Usually there are four of these pins located near the four corners ot' the box part and the pins are arranged to be substantially flush with or below the upper surfaces of the table when the litter plate is depressed and to lift the box part as the plate is raised and locate it on the mandrel. (See also Fig. 17.) The lifter plate also carries a plurality of pins 206, similarly arranged and acting in a similar way for box parts C. The pins 204 and 206 pass through suitable holes in the table. Since the sides of-box parts C are in the present. instance lower than those of box parts It the lower face of mandrel 177 is closer to the table than the lower face of mandrel 157 and the length of pins 206 may be regulated so that their upper ends go further below the table top in the downward movement of the litter plate. and. therefore, the same upward movementot the lifter plate causes the upper ends of pins 206 to wing the box parts (1 into proper wort position on mandrel 177.

Strippers are provided to positively re move the box parts from the mandrels. A. stripper bar 208 is located parallel to the forward face of mandrel 157 and another stri per bar 209 is located near the rear face of tlie mandrel. .-These stripper bars are connected to lifter plate 202 by rods 212 passing through holes in the table. Other stripper bars i214215 are provided in similar locations for mandrel 177 and these are connected to the lifter plate by rods 217. The stripper bars have each one or more lugs 219 221 in the a 18) extending into recesses acent faces of the mandrels. Strip er in 219 are located above the upper e ges o the box part sides, with slight clearance when the lifter .plate is depressed, and maintain the same relation to the box side edges when the box parts are placed on the mandrels. After the hinge members are formed and the lifter plate commences to drop, the lugs strike the upper edges. of the box parts and force them from the mandrels until they rest on the table. When the pressing action occurs the box parts are moved laterally somewhat away from the center of the machine. To provide for this movement and also to move them back a sin to proper position and free them from tile male die members, devices which may be identified as adjusting arms .223, are provided, one for each mandrel. The upper end of each arm is pivoted in a clevis 224 which maybe formed on the top plate of the correspondin mandrel, as plate 159 of mandrel 157. The ower end of this lever lies against the outer side of the corresponding box part and is urged into engagement with the box part by a s ring 226 located in a suitable socket in ad1acent block 151. The adjusting arms are moved back positively to permit (866 also Fig B'Lthe lateral movement of the box parts duri the ressin action b ins 228 passing th ough the rdandrels adu t longitudinally movable, one end of each pin engaging with a face of one of the movable die bodies 167 or 179 and the other end of the pin engaging against the adjusting arm. When the'box parts are lifted into position on the man rels their outer side walls fit easily between the mandrels and the ends of the adjusting levers, and as the dies move to form the hinge members, (pins 228 move the adjust ing arms outwar to prevent undue pressure against the box parts. When the dies are retracted s rings 226 cause the adjusting arms to force t e box parts laterally and then the strippers remove the box parts-as previously described. a

The lifter plate 202 is raised and lowered by a. cam disk 230 on the main shaft. This cam disk has a. cam groove 232 in which is located a cam follower 234 carried by a cam yoke 236 slotted toembraee shaft 42. The cam yoke is connected to the lifter plate by rod 238 and the position of the plate in regard to the cam yoke may be adjusted by means of screw threads formed on the rod and a lock nut 240. and this adjustment is represent ative of adjusting devices that are generally applied to the connections between the different cam yokes and their driven parts, as shown, but not particularly described in connection with each of the different devices. The cam groove 232 is formed so that the lifter plate commences to rise shortly after the box parts are inthe corresponding work POSllilQILpBiIld completes its movement before cam grt'iove 199 of toggle operating cam yoke 195 moves the forming dies to any great extent; and cam groove 232 has a dwell, that is a concentric, approximately semi-circular portion, to retain the lifter plate in elevated position while the dies are in operative engagement with the box part.

Lifter plate 202 with its connected parts is quite heavy and in some cases, and especially when the machine is run quite fast, there is some tendency for the cam mechanism to impart a somewhat jerky movement to the litter plate, and although it is not necessary in all cases, I prefer .iu the present embodiment of the invention to provide menus to relieve the cam mechanism of a part of the weight of the lifter plate and to thereby steady the movement of this member. Fort this purpose rod 238 is provided with a upward extension 241 and a spring 242 is rranged to act between a collar 243 on th upper end of the rod and a longitudinal tllock or frame member 244, which may also be arranged to provide an additional support for crossbar 150. The spring tends to urge the lifter plate upward and to carry a substantial part of its weight. so that the cam mechanism is relieved of strain and the movement of the plate is rendered satisfactorily smooth and steady.

When the hinge member forming opera tion at this work position is completed the box parts again lie on the table in their normal path of movement and are advanced one step at the next feed stroke of the feed bars 1.3 and 55. that is, to the work position arranged for insert ion oi hinge pintles in box parts ii, in the present embodiment of the invention.

hen it is desired to provide box bodies H with match strikingcorrugations 25 (see Fig. 6). these corrugations may be produced at the same time that the hinge ears are punched by providing die members 163 and 172 with suitable complemented projections and depressions arranged along surfaces 164 and 173 of the respective die members.

Pintle inserting mechanism.

A considerable part. of the mechanism for inserting the piutlcs is located just to the rear of section line 16, Fig. 2, and the box parts are held here for pintle insertion, but a part of the pintle handling mechanism extends further rearward. in the machine and substantially to thesection line 20 of Fig. 2 Since considerable longitudinal space in the machine is thus taken up by the pintle mechanism. certain idle positions of the box parts are provided, particularly as shown two idle positions between the pintle insertin loc'ation and the next work position. Al position of box parts C opposite box parts}? at the pintle inserting position are idle positions of the first mentioned boxarts due to the fact that in the present em odiment of the invention it is not necessary to perform any operation upon the cover arts at this point. Such idle positions 0 the box parts as are mentioned are due to the general design of the machine and evidently with pintle inserting mechanism of a different sort some or all of the idle positions may be eliminated.

The pintle inserting mechanism is best shown in Figs. 1, 2 and 16 to 19, inclusive. A mandrel 245 is provided for the box bodies, elevated sufficiently above the table to permit the passage of. the bodies. The mandrel is supported by a cross piece 247 and this in turn is supported by b ocks 249 and 251 held by bolts 253. Lifter plate 202 previously mentioned, has an extension 255 carrying pins 257 passing through holes in the table, usually four in number, one arranged near each corner of the box part. When the lifter plate is raised the pins elerate the box art and place it on the mandrel, substantially at the last work position. Strippers are alsoprovided including stripper bar 209 previously mentioned and con nected to lifter plate as described. This stripper bar is provided with lugs 259 extending into recesses 261 provided in mandrel 245 and its supporting plate 247.

At the rear side of the mandrel is arranged another strip r bar 263 connected to the extension of t e lifter plate by rods 265 and this stripper bar is provided with lugs 259, as in the case of the opposite bar. The lugs 259 lie above the edges of the side walls of the box part at all times and when the lifter late descends after the pintle is inserted, t e lugs strip the box part from the mandrel and restore it to its proper path of movement on the table. Block 251 supports a transverse member 247, and is also arranged to provide pintle guiding and cutting devices opposite the inner face of the mandrel. In Figs. 18 and 19 a box part is shown in position on the mandrel 245 with its pintle receivin wall between the mandrel and block 251. he intle, consistin; in this case of a piece 0 suitabl still wire supplied continuous! from-a ree is to be inserted into the lpin e ears 20 tl rough the apertures 21. loch 251 is rovided with a wire guide consisting of a s eeve 268 a central bore of roper character to {it the wire quite snugy but to permit the wire to slide freely t rough the guide.

Near the guide sleeve 18 another guide conof a block 272 inserted in block 251 and rovided with a channel 27 4, the outer face 276 of which is arranged at a moderate angle to the longitudinal axis of the machine, in line with the bore of guide sleeve 268 and in line with opening 21 of the left hand hinge ear 20 as viewed in Fig. 18. The

pintle wire 270 thus has a straight run ment and also to effect insertion of the pintle into the other hinge ear, consisting in this case of a shoulder 278 forming one of the elements of a recess 280 in a sliding member 282 located in a slot 284 formed in mandrel 245. Intermediate guide sleeve 268 and guide block 272, a plunger 286 is arran ed to reciprocate latera ly in a slot rovide in block 251. At its inner end t is plunger has a substantially squared face 288 and in this face is a shallow channel 290 to engage and guide the pintle. At one side the inner end of the plunger is also formed into acutting edge 292 moving against the adjacent face of guide sleeve 268 to cut off the wire 270 when it has been fully inserted into engagement with shoulder 278. Fig. 18 shows the parts after the wire has been so inserted and after plunger 286 has moved inward cutting oil the wire and carrying the right hand end of the pintle into position to be inserted in the right hand hinge ear 20. The pintle is now engaged and guided by the shallow channel 290 in the end of the plunger. In this movement the pintle may be slightly sprung, as shown, but is not permanently bent and when inserted in the other ear straightens itself out and is retained in the ears by the proximity of its ends to the outward ends of the pintle ears. The sliding member 282 is now moved to the right as shown in Fig. 19. Shoulder 278 forces the pintle to the right so that its right hand end enters the right hand hinge car. As slidin member 282 completes its movement as s own in Fig. 19 the pintle is freed from shoulder .278 and completely inserted in the box part, and the formation of this hinge member is completed.

To feed the continuous pintle wire intermittently t: the inserting and cutting off mechanism, the following devices are provided. A sliding block 294 is arranged below the table in flanged guides 296, to re ciprocate in line with the angular direction of the'pintle wire above mentioned, that is at the same moderate angle to the axis of the machine. This-block has a member or lug 298 extending u through a slot 300 in the table. At one si e of lug 298 is a plate,

or plane surface 302 over which the wire passes. A awl 304 is ivoted at 306 to lug 298 an formed 50 t at its lowerend 308 constitutes a tooth to engage and clamp the wire between the tooth and the surface 302. At each return movement of block 294 the pawl tooth rides idly back over the wire and at each feed movement of the block the tooth grips the wire and feeds it for-. ward a distance equal to one pintle length. m

The pawl may engage the wire by gravity, or a spring may be rovided, as may be desirable. The wire 1s carried hv,u suitable reel (not shown) and usually passes through suitable wire straighteners 310 312 located on the table. \Vire feed block 294 is also provided with a downwardly extending lug 314 of substantially rectangular cross section and this lug is of considerable length transversely of the machine, as best indicated in Fig. 18. The lug is engaged on its two opposite long faces by rounded blocks 316 adjustably mounted in the upper end of a lever 318, conveniently by means of screws 320. The lower end of the lever is carried by a transverse shaft 322, located in bearings 324 fixed to longitudinal frame members 38 and 39. The lever has a cam follower 326 located in a cam groove 328 The cam of cam 330 fixed on shaft 42. groove is arranged so that the lever is oscillated to feed the wire forward after the box part is located on the mandrel. As the adjustable lever jaws 3.10 move lug 314 of the wire feed block forward and back the block slides laterally between the jaws. thus permitting the movement of the feed block in a different plane from the movement of the lever without providing complicated connecting mechanism. After the pintle is inserted and cut off the feed block is retracted by the cam.

The cutting and pintle guiding plunger 286 has its outer end inserted in a socket in a block 331 and adjustably secured by a set screw 333. The block is connected by a link 335 with the upper end of a. lever 33?. which passes through a slot in the table and is fulcrumed at 339 on a bracket 341, secured to the underside of the table. The lower end of the lever has a cam follower 343 located in a cam groove 345 on the rear face of cam disk 230 previously mentioned. The cam groove has a concentric portion interrupted by a. rise 347 including a short concentric portion suflicient to move the cutting plunger in to cut oil the wire after the wire is inserted by the movement of feed block 294 and hold the wire during insertion into the opposite pintle car by the movement of slide 282, and thereafter the lever is moved to retract plunger 286, ready for another cutting movemen Pintle slide 2 2 has a stud 348 extending up through a slot in plate 247 and the upper end of this st'yjfl is connected .with a rod 349 extending r rwardly of the machine to a point corres onding with the next work position, at which rod 349 rests in a guide slot 354 formed in a block 3536, later more p'artieularly described. (See also Fig. 20.) it spring 351 is stretched between a pin 352 on rod 349 and a. pin 353 located on a stationary support, such as plate-247, to retract rod 349 arrlll slide 282.

slot 354, rod 349 is provided with an angular cam face 358. A vertically moving roller or stud 360 co-operates with this cam face by vertical movement at the proper moment to draw rod 349 to the right (as viewed in Figs. 18 and 19) and so move the slide and slide shoulder 278 and insert the pintle in the right. hand hinge ear.

The box parts are new advanced by three successive feed movements to the next work position, just to the right of section line 20, Fig. 2.

Burr stamping mechanism.

At this position mechanism is provided (Figs. 1, 2 and 20) for removing burrs formed about the ventilating openings 30 and conveniently this is done by stamping, to suificiently flatten out the burrs or ragged edges, extending outward from the box bottom, produced by the punches, as previously explained. Block 356 previously mentioned, provides a channel for the passage of box parts B and in the sides of this channel guides 305 may be located, provided with flanges 367 overlying the upper edges of side walls of the box body. Block 356 has an extension 369 bored to provide a sleeve for reciprocating plunger or stamp 371. The lower end of this plunger is substantially flat and co-operates with a block 373 inserted in the table. The block and the plunger are in line with the ventilating openings 30 and when the box part is in position the plunger is dropped forcibly upon the box bottom 10 and stamps the burrs over against block 373. The upper end of plunger 371 is provided with a clevis 375 and in this is pivoted on a stud 377 a lever 379, fulcrume-d at 381 in the upper end of a link 383. The lower end of the link is pivotally mounted on a lug 385 bolted to the table. ,At an intermediate part of the lever a. link 387 is pivoted to it. and this link is in turn pivoted to the upper end of a rod 389 connected adjustably to a cam yoke 391. The bifurcated lower end of this cam yoke embraces shaft 42. On the shaft is a cam disk 393, having a cam groove 395, in which rests cam follower 397 mounted on cam yoke 391. The inner surface of the cam ove has a depression or drop 399 into which the cam follower falls to permit the stamping movement of the plunger. Thetime of the plan 1' drop is controlled by a detentlever 403, iilcrumed at 40%md passing through a. slot in the table. 'e upper end of this lever has a notch 407 forming a shoulder 409 normally engaging beneathplunger lever 379. The lower end of lever 403 is provided with an angular face 411 (so-operating with an angular cam 413 secured to the periphery of cum disk 393. Lever:403 is provided with a spring 415 urging its upper end Adjacent to guide into engagement with lever 379 to bring loo shoulder 409 beneath the latter lever. When plunger 371 is elevated by the action of cam 395 shoulder 409 of the detent lever 403 springs under the plunger lever and holds it and the plunger up until cam 413 acts on the lower end of the detent lever to with draw the shoulder'from under lever 379 and thereupon plunger 371 drops by gravity, or the force of its blow upon the box bottom may be increased as desired by a spring 417 connected to an extension 419 of the lever and to the table at 421. When the plunger drops cam follower 397 falls into cam depression 399 and further rotation of the cam again elevates lever 379 and it is then reengaged by detent 409. The action of cam 413 to release the lever is timed so that, of course, the stamping action takes place during the pause of the box part at this work position; and when stud 360 previously mentioned, for operating rod 349 to effect a part of the pintle inserting operation, is lorated. as in the present embodiment, on

' plunger 371, the lElBRSB of detent 409 is, of

iii)

lines 21 an course, also timed so that the dropping of the plunger and consequent action of stud 360 to effect pintle insertion occurs after the pintle is out off and arranged for insertion into the right hand pintle car by the movement of a slide 382. as previously described in connection with Figs. 18 and 19. If the burr stamping operation is omitted, evident- 1y simplified means can be provided for moving rod 352 or otherwlse effecting the insertion of the pintle into the right hand ear.

After the stamping action the box parts are advanced to the next work position. Here the box body last acted on by the stamping mechanisn meets a cover part C delivered by .the transverse conveyor, as previously explained.

H inge connecting mechanism.

Fi 21 and 22 show mechanism formanipu ating the box cover parts to commence the o ration of connecting the hinge memhens, in different positions. This mechanism is located ap roximately between the section 24, Fig. 2. Fig. 21 shows a cover part C brought into contact with a body part B by the transverse feed bar. 63. In this position the cover part has over a tilting lever 423 having a broad end 424 engaging the cover part substantially throughout its length to steady it and hold it in proper position during the tilting movement. The lever is located in a recess 426 in the table and is pivoted on a shaft 428. The lever has an arm 430 to which is pivoted a link 432. and the lower end of this link ispivoted to an arm 434 extending from a hub 436 adjustably secured on a vertical rod 438 by a set screw 440. Shortly after the box parts come into position, as shown in Fig. 21, rod 438 is raised by mechanism, later described, and lever 423 is thus moved up to the position shown in Fig. 22 until box part C rests against the l qngitudinal guide rail 442 bolted to supports .444 located along the side of the table. In this movement the outer side of the box cover describes an arc, and it isguided by are shaped guides 446 secured to suitable fixed supports at 448. The box part is held against guide 442 with sufficient clearance to permit easy sliding movement by a guide rail 450 carried by the arm 452 pivoted at 454 to a bracket 456 secured to the table. The rail arm 452 is arranged so that as the outer side of the box cover strikes it, the arm and the rail 450 are raised to permit the box part to ass, and the rail then drops back into uidmg position, as shown in Fi 22. Ti tin lever 423 is then retracted by downwar movement of rod 438. The relation of the hinge parts when the box cover is tilted to the position of Fig. 22, is shown in enlarged detail in Fig. 23. The hooked end 22 of the cover hinge member lies against one side of box body B and is directed upward toward the pintle 28, ready to pass between the plntle and side of the body when the cover part is moved upward in relation to the body The ends, 16 of the cover art somewhat overlap the ends 12 of the b0 y so that. the cover is caused to move along with the body when the body is fed forward.

The associated box parts are then advanced to the next work position in the same relative positions, the cover in this movement sliding freely between guide rails 442 and 450.

Guide rail 450 with its supportin arm 452 may be omitted in some cases. or example, it is found that this guide member isunnecessary when the machine is run at high speed.

Additional hinge connecting mechanism.

moved along into the present wor position the cpver slides between rails 460 and 442, as shown in Fi 24. A tilting member 466 is located at a at the longitudinal center of cover part 0 at a. point opposite rail 460. This member consists simply of the endjof a suitably curved lever 468 ivoted at 470 on the arm 472 extendin fi om a bracket 474 located on the table. ver 468 has an arm 476 sufficiently long and heavy to constitute a counterweight, and this arm is provided with a laterally extending pin 478. Vertical rod 438, previously mentioned, passes through a suitable guide sleeve in the table, and in addition to arm 434, previously mentiened, located below the table, it carries above the table an arm 480, and this arm is provided with an upwardly extending pin 482, the upper end oi which co-operates with pin 478 of the tilting lever 468. Rod 438 also carries an arm 484, the end of which extends along arm 462 of rail 460, as best understood in Fig. 2. Rod 438 is moved vertically by a cam yoke 486 having a cam follower 488 engaging a cam groove in cam disk 490 carried by main shaft 42. The cam yoke and cam disk are shown in full lines in Fig. 1, and the cam yoke and cam groove, and cam follower, 488 are shownin dotted lines in Fig. 24, it being understood that the cam roove there shown is not a part of the cam ody represented in full lines. By the cam mechanism described, rod 438 is re ciprocated vertically to perform the operations mentioned in connection with Figs. 21 and 22, and at the same time when the rod is raised from the position shown in Fig. 24, at the present work station arm 484 first raises arm 462 and so raises rail 460 clear of cover C, and then pin 482 engages pin 478 and swings the tilting lever 468, so that its member 466 engaging the cover part swings that partout and then down, as shown 1n Fig. 25.

An elevating plunger 49] of general rectangular cross section is mounted to reciprocate vertically in a suitable hole provided for it in the table. At its upper end this plunger carries an upward extension 492 of reduced width and in the upper edge of this extension is formed a trough-like recess 493 shaped to fit curved hinge member-23. Below the table the plunger is provided with a cross piece, or head 494 extending forward and rearward from the body of the plunger and stop screws 495 ass through 'holes in these extensions and t rou h spring sockets 496 bored in the table an? the ends of the 'screws engage in threaded holesjn the table,

as most clearly shown in Fig. 26. Springs 497 surround the screw shanks in the sockets and bear against the ends of the sockets and against the ends of cross member 494 to retract the plunger until it is stopped by engagement with beads of screws 495, which may be adjusted to limit the downward movement of the plunger. The plunger is lifted by a lever 501 ivotally mounted at 506 in a bracket 505 be ted to the under face of the table and provided at its other end with a tappet 509, which may be adjustably secured in the lever. Lever 501 is operated by cam members carried by a cam plate 511. The lever has a downwardly extending arm 513 carrying a cam roller 515 confronting the periphery of the cam plate. The cam may be arranged in two steps 517 and 519. The first step may be provided to get on the cam roller and raise the lever to bring the elevating plunger into initial contact with the lower side of cover part C, and the next step or elevation 519 of the cam then arts to raise the elevating plunger to its uppermost position. as shown in Fig. 25, and raise the cover so that hook 22 of the cover hinge member is inserted between the pintle and the box body at about the time that guide rail 460 is being lifted, and the cover tilted away from the position shown in Fig. 24'.

When the box parts come into position as shown in Fig fl-l. plunger 401 is retracted as shown in that figure and in Fig. 26. The curved hinge member slides into of the plunger extension ready to ie engaged and lifted by the plunger. raised during the tilting movement of the rover C when it is about at vertical position, and this lifting movement inserts the end of hook 22 between the pintle and the adjacent wall of the box body and further lifts the cover until curved portion 23 tits about the pintle. In the further tilting of tile eorer before it approaches the position shown in Figs. 25 and 26. the plunger is withdrawn so that extension 492 does not interfere with further opening movement of the cover. The cover then falls flat on the table and thereafter the complete box with the hinge members connected. but not permanently fastened, is advanced to-the next work position.

Hing e clinching mechanism.

Mechanism for permanently connecting the hinge members to .ther is located to the right of section line 2 Fig. 2, and is shown in Figs. 27 and 28. The arm 525 is pivoted at 527 in a bracket 528 secured to the table and conveniently this arm is bent at" an angle at 530 so that the main part of the arm lies approximately parallel to the table. Adjustably secured by screws 532 on this arm is a die block 534 provided with a die abutment member or face 536. Pivoted to d e block 534 at 538 is a die lever 540 carrying a die 542 adapted to cooperate with die abutment 536. The free end of ilever 540 is connected by link 544 to a vertical rod 546 passing through a suitable reciprocating bearing in the table and providedwith a cam yoke 548, which has a cam follower 550 located in a cam groove 552 of cum disk 554 carried by shaft 42. An adjustable stop ctinsisting conveniently of a screw 556 passing through arm 525 serves to limit the opening movement of die lever 540 in relation to die block 534, and an adjustably fixed stop, consistl o mg conveniently of a screw 558 entering a The plunger is suitable screw threaded'hole in the table, serves to limit the downward movement of arm 525.

lrVhen the box arts are fed to this work osition the. mecianism is in the "position indicated in Fig. 27; that is cam 552 holds rod 556 in its uppermost position; die lever 540 is held up against'its side and arm 525 is' held up away from the box parts. Thus, die 542 is separated from die abutment 536. The cam now causes rod 546 to descend, and die abutment 536 descends into box part B close to inner wall 11 thereof. Die 542 de scends into cover part C opposite the end of hingehook 22. Die 542 is provided with a suitably 'formed surface 560 to bend the hooked end of the cover hinge member around the pintle and this is done in further downward movement of rod 546 which first brings arm 525 down on its stop and then pulls down the outer end of die lever 540, clinching the box parts and the hinge mcmber between the die and the die abutment and completing the hinge connection, as clearly shown in Eig. 29 by bending hook 22 substantially entirely around the pintle 28. The cam then raises rod 546 and releases the die jaws from the box parts in an obvious way. The completed box is then fed forward another step by feed bar 45 and may be carried onward to a filling machine or other Wise disposed of by an extension of the feed bar, or by any other suitable conveyor.

In the previous description reference has been made mainly to the progress of a single pair of complemental box parts through the machine, but it will be understood that the parts follow each other in regular sequence and that appropriate operations are performed on different box parts of the series simultaneously at all the different work positions and that the action of the machine is completely automatic. taking in blanks haw ing no hinge members oi only rudimentary hinge members, at the feed end, forming the hinge members and finally connecting the hinge members permanently together and delivering finished boxes in rapid succession.

\Vhile it is generally desirable to provide all of the ins'trumentalitiesmentioned, or their equivalents some of them may be omitted, and the mac ine will still operate satisfactorily and produce formed hinge members or assembled boxes. For instance, the

ventilator-opening punching apparatus or the burr stamping apparatus may be omitted without afl'ecting t 0 general organization or principal functions of the machine. Hinge forming mechanism for either of the box flparts imay also be omittedin some cases, for Y nstauce, when suitable hinge members are desirably. formed on such parts by other or separate apparatus and the machine can in that case easily be ada ted to form the hinge members on the other ox partsand to associate the two complcmental parts of the boxes and complete the hinge connection. It will also be understood that in the broader aspect of the invention it is not limited to the formation of bin e members of the kind shown, but that the iinge parts may be varied greatly by suitable variations in structure. It is manifestly impossible to point out all of the many modifications whichmay be made within the principles of the invention, but these will be sufficiently understood by persons skilled in the art from a study of the single embodiment shown and described.

\Vhat I claim is 1. In a box part hinge forming and assembling machine, means for connecting a' hinge member to a box part, means for subsequently bringing a complemental box part having a hinge member in proximity to'the first box part. and means for connecting the hinge members together.

2. In a box part hinge forming and assembling machine. means for connecting a hinge member to a box part, means for bringing a complcmcntal box part having a partly formed hinge member in proximity to the first box part, means for engaging the hinge members, and means for completing formation of the partly formed member to complete the hinge assembly of the box parts.

3. In a box part hinge forming and assem bling machine, means for attaching a. hinge pintlc to a box part, means for bringing an.- other box part having a hinge member in proximity to the first box part, and means for connecting the hinge member and pintle together.

4. In a box part hinge forming and as: sembling machine. means for attachin a hinge pintlc to a box part, means for bringing another box part having a hinge member in proximity to the first box part and engaging the hinge member with the pintle, and means for completing the forming of the hinge member to complete the hinge connection of the box parts.

5. In a box part hinge forming and assembling machine, means for connecting a hinge p'intle to a box part, means for moving a complemental box part having a partly formed hinge member in'proximity to the first box part, means for interconnecting the hinge member and pintle, and means'for completing the formation of the hinge memher to complete the hinge connection of the box parts. i

6. In a box part hinge foign lng and assembling machine, means to attaching a. hinge member to a box part1 means for shaping a hinge memberon a oomplemental .box part, and means for connecting the hinge members together.

7.5111 a box parthinge forming and up sembling machine, means for attaching a hinge member to a box part, means for partly sha ing a hinge member on a comlemental ox part, means for interconnectmg the hinge members, and means for completing the formation of the partly-termed hinge member to complete the hinge assembly of the box parts.

8. In a box part hinge forming and assembiin machine, means for attaching a hinge pintle to a box part, means for shaping a hinge member on a complemental box part, and means for connecting the hinge member and pintle together.

9. In a box art hinge forming and assembling machine, means for attaching a hinge pintle to a box part, means for shaping a hinge member on a complemental box part, means for bringing the box parts together, and means for connecting t e hinge member and pintle together.

10. In a box part hinge forming and assembling machine, means for attaching a hinge pintle to a box art. means for partly shaping a hinge mem er in a complemental box part, means for interconnectin the hinge members, and means for comp eting the formation of the partly formed member to complete the hinge connection of the box parts.

11. In a box part hinge forming and assembling machine, means for attaching a hinge pintle to a box part, means for partly shaping a hinge member in a complemental box part. means for bringing the parts together with the hinge member and pintle in engagement. and means for completing the formation of the partly formed hinge member.

12. A boxpart hinge forming and assembling machine comprising means for attaching a pintle to a box part, means for acting on a rudimentary hinge-member of a complementary box part to produce a partlyformed hinge member thereon, and means for connecting said hinge member and pintle together,

13. A box part hinge forming and assembling machine comprising means for attaching a pintle to a box part, means for bending a rudimentary hinge member of a complemcntary box part to produce a hooked iinge member thereon, and means for connecting said hinge member and pintle together.

14. A box part hinge forming and assembling machine comprising means for attaching a hinge pintle to a. box part, means for partly shaping a rudimentary hinge member of a compl emental box part, means for engaging t e hinge member and pintle together, and means for completing the formation of the partly shaped hinge member to complete the hinge connection of the box parts.

15. In a box part hinge forming and assembling machine, means for forming a box part to receive a pintle, means for inserting a pintle in the box part. means forinterconnecting with the pintle a part1 formed hinge member of a complements] x part, and means for completing formation of the partly formed hinge member to complete the hinge connection of the box parts.

16. In a box part hinge forming and as sembling machine, means for forming a box a part to receive a pintle, means for inserting a pintle in the box part, means for shaping a hinge member in a complemental box part, and means for connecting the hinge member with the pintle.

17. In a box part hinge forming and assembling machine, means for forming a box part to receive a pintle, means for inserting a pintle in the box part, means for bending a hinge member in a complemental box part, means for connecting the hinge member with the pintle, and means for completing formation of the hinge member about the pintle.

18. In a box part hinge forming and assembling machine, means for forming pintle ears in a box part, means for inserting a pintle in the cars, means for shaping a hinge member in a complemental box part, and means for connecting the hinge member with the pintle. v

19. In a machine of the class described, means for forming pintle ears in successive similar box parts, means for inserting pintles in the ears of successive box parts. means for shaping hinge members in successive complemental box parts, and means for connecting the box part pinties and hinge members together in successive pairs to form complete hinged boxes.

20. A box forming machine comprising means for forming pintle receiving members in successive similar box parts, means for inserting hinge pintles in said members, means for forming complemental hinge members in successive complemental box' parts, means for bringing the hinge members of successive pairs of complemental box parts together, and means for completing the hinge engagement of the box parts.

21. In a box forming machine, means for advancing a partly formed box part blank, means for forming in a side wall of the blank pintle ears having confronting openings, means for inserting a separate rodshaped intle in ears of each of said blanks, means or moving a complemental box part having a hooked hinged member, into association with the blank, and for engaging the hooked hinge member with the pintle, and means for completing the formation of the hinge by clinching the hook part about the veyor, and mechanisms located at different positions of the conveyor travel including means for forming pintle-receiving members in abox part, means for inserting a pintle in said members, means for bringing another box part provided with a hinge member into association with the box part first mentioned, and means for connecting the hinge member and intle together to form a complete hinged ox.

23. In a box part binge forming and assembling machine, means for forming hinge members simultaneously in two complemental box parts, means for advancing the parts and inserting a pintle in the hinge members of one of them, and means for moving the box parts together and completing the hinge assembly.

24. A box part hinge forming and assembling machine comprising two parallel stepby step conveyors for separate pre-formed box parts, means for forming hinge members on box parts advanced by one of the conveyors, means at a substantially opposite position for shaping hinge members on box parts. advanced by the other conveyor, and means for operating the two hinge forming means simultaneously.

QEa'A box part hinge forming and assemtiling machine comprising two parallel stupby-step conveyors for box parts, means for forming pintle ears on box parts advanced by (meet the conveyors, means at a substantially opposite position for shaping hinge members on box parts advanced by the other conveyor, and means at a subsequent conveyor position for inserting p'intles in the ears.

26. A box part hinge forming and assembling machine comprising two parallel stepby-step conveyors for box parts, means for forming pintle ears on box parts advanced by one conveyor, means at a substantially opposite position for shaping hinge members on box parts advanced by the other conveyor, means at a subsequent conveyor position for inserting pintles in the ears, and means for bringing the box parts together and completing the hinge connection.

27. A box part hinge forming and assembling machine com using two parallel step by-step conveyors or box parts, means for forming pintle ears on box parts advanced by one conveyor, means at a substantially opposite position for shaping hinge members on box parts advanced by the other conveyor, means common to both of the hinge formin means for operating them simultaneous y, and subsequently-acting means for inserting pintles in the cars.

28. A box part hinge forming and assemblin machine comprising two parallel stepby-s p conveyors for box parts, means for forming pintle ears on box parts advanced bv one conveyor, means at a. substantially opposite position for shaping hinge members on box parts advanced by the other conveyor, means common to both of the hinge forming means for o crating them simultaneously, subsequenty acting means for inserting pintles in the ears, and means for bringing the box parts i'together and completing the hinge connection.

29. In a box part hinge forming and as sembling machine, means for simultaneously forming hinge members in two complemental box parts, means for advancing the parts and inserting a pintle in the hinge members of one of the parts, mean for moving the box parts together and engaging the hinge member of one part with the pintle of the other, and means for completing the hinge connection.

30. In a box part hinge forming and assembling machine, means for simultaneously forming hinge members in two complemental. box parts, means for advancing the parts and inserting a pintle in the hinge members in one of the parts, means for moving the box parts together, and tilting one of the parts to engage its hinge member with the pintle. and means for advancing the box parts in substantially open relation and completing the hinge connection.

31. In a box part hinge forming and as sembling machine, means for forming pintle ears in a box part, means for simultaneously forming a hinge hook on a eomplemental box part, means for advancing the parts and inserting a pintle in said ears, means for moving the parts together and engaging the hinge hook with the pintle, and means for advancing the parts and completing the hinge connection.

32. In a box part binge fo ming and assembling machine, means font orming pintle ears in a box part. means for concurrently forming a hinge hook on a complemental box part, means for advancing the parts and inserting a pintle in said ears, means for moving the box parts together and tilting one of them to engage its hinge hook with the pintle, means-for advancing the parts in substantially open relation. and means for clinching the hook member about the pintle.

A box part hinge forming and assembling machine, comprising an intermittent conveyor for successive box parts provided with rudimentary hinge members, and means for forming the rudimentary members into partly complete hinge members, means ior then moving the box parts into association with other box parts having hinge members, means for tilting the first named box parts and engaging their hinge members with the hinge members of the second named box parts. means for advancing the two parts together and means for completing the formation of the partly formed hinge members. 

